Order/Bulk editing Orders
From Shopnix Help
Where to get bulk editing orders feature ?
This feature lets you to edit your orders in a bulk mode instead of one by one.
Go to Admin > Orders , click on the option (red square in the below image)
After clicking you will get a page like below
You can delete all the orders by using 
button.
If you have more queries or would like assistance with this please contact us on support@shopnix.in.